South Korea Mobile Phone Companies, from Jan 1, 2004) 011 - Mobile (SK Telecom, until Dec 31, 2003)(All South Korea Mobile Phone Companies, from Jan 1, 2004) 012 - Machine to machine (Former Beeper) 013xx - Mobile special net (wireless vessels etc.) 014xx - Point-to-Point Protocol Access number 015 - Mobile services: Paging services 016 - Mobile (KT, until Jun 30, 2003)(All South Korea Mobile Phone Companies, from Jul 1, 2004) 017 - Mobile (SK Telecom, until Dec 31, 2003)(All South Korea Mobile Phone Companies, from Jan 1, 2004) 018 - Mobile (KT, until Jun 30, 2003)(All South Korea Mobile Phone Companies, from Jul 1, 2004) 019 - Mobile (LG U+, until Dec 31, 2004)(All South Korea Mobile Phone Companies, from Jan 1, 2005) Services 030 - UMS 050 - Personal number service 050x - Anonymous virtual number service 060 - Telephone based intelligent service 070 - Internet phone (VoIP) 080 - Toll-free call Area codes Before June 2000, South Korea used two- to four-digit area codes. 02 - Seoul and parts of Gyeonggi-do (Gwacheon, Gwangmyeong and some neighborhoods of Goyang and Hanam) 031 - Gyeonggi-do 032 - Incheon and parts of Gyeonggi-do (Bucheon and some insular communities of Ansan) 033 - Gangwon-do 041 - Chungcheongnam-do 042 - Daejeon and a part of Chungcheongnam-do (Gyeryong) 043 - Chungcheongbuk-do 044 - Sejong City 049 - Kaesong Industrial Region 051 - Busan 052 - Ulsan 053 - Daegu and a part of Gyeongsangbuk-do (Gyeongsan) 054 - Gyeongsangbuk-do 055 - Gyeongsangnam-do and a few neighborhoods of Ulsan 061 - Jeollanam-do 062 - Gwangju 063 - Jeollabuk-do 064 - Jeju-do Domestic long-distance carrier codes It is not necessary to dial any carrier prefix before making a domestic long-distance call. These prefixes are needed only when you want to choose a different carrier other than your default long-distance carrier (usually the same company that provides your phoneline). 081 - KT 082 - LG U+ 083 - Sejong Telecom 084 - SK Broadband 085xx - [Domestic long-distance Value Added Service (VAS)] 086 - SK Telink 087 - (Currently not in use) 088 - (Currently not in use) Special numbers 100 - KT customer center 101 - LG U+ Home Service customer center 106 - SK Broadband customer center 107 - Video relay service 111 - NIS 112 - Police 113 - Spy reporting Area Code + 114 - Directory assistance (Korea Info Service) 115 - KT